package com.ruoyi.auth.service;

import com.aliyun.dysmsapi20170525.Client;
import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.aliyun.dysmsapi20170525.models.SendSmsResponse;
import com.aliyun.tea.TeaException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.models.RuntimeOptions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import com.ruoyi.common.core.constant.CacheConstants;
import com.ruoyi.common.core.constant.Constants;
import com.ruoyi.common.core.constant.SecurityConstants;
import com.ruoyi.common.core.constant.UserConstants;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.enums.UserStatus;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.core.text.Convert;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.utils.ip.IpUtils;
import com.ruoyi.common.redis.service.RedisService;
import com.ruoyi.common.security.utils.SecurityUtils;
import com.ruoyi.system.api.RemoteUserService;
import com.ruoyi.system.api.domain.SysUser;
import com.ruoyi.system.api.model.LoginUser;

import java.util.concurrent.TimeUnit;

/**
 * 登录校验方法
 * 
 * @author ruoyi
 */
@Component
public class SysLoginService
{
    @Value("${aliyun.accessKeyId}")
    private String accessKeyId;

    @Value("${aliyun.accessKeySecret}")
    private String accessKeySecret;

    @Autowired
    private RemoteUserService remoteUserService;

    @Autowired
    private SysPasswordService passwordService;

    @Autowired
    private SysRecordLogService recordLogService;

    @Autowired
    private RedisService redisService;

    @Autowired
    private RedisTemplate<String,String> redisTemplate;

    /**
     * 登录
     */
    public LoginUser login(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户/密码必须填写");
            throw new ServiceException("用户/密码必须填写");
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户密码不在指定范围");
            throw new ServiceException("用户密码不在指定范围");
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户名不在指定范围");
            throw new ServiceException("用户名不在指定范围");
        }
        // IP黑名单校验
        String blackStr = Convert.toStr(redisService.getCacheObject(CacheConstants.SYS_LOGIN_BLACKIPLIST));
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "很遗憾，访问IP已被列入系统黑名单");
            throw new ServiceException("很遗憾，访问IP已被列入系统黑名单");
        }
        // 查询用户信息
        R<LoginUser> userResult = remoteUserService.getUserInfo(username, SecurityConstants.INNER);

        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "登录用户不存在");
            throw new ServiceException("登录用户：" + username + " 不存在");
        }

        if (R.FAIL == userResult.getCode())
        {
            throw new ServiceException(userResult.getMsg());
        }
        
        LoginUser userInfo = userResult.getData();
        SysUser user = userResult.getData().getSysUser();
        if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }
        passwordService.validate(user, password);
        recordLogService.recordLogininfor(username, Constants.LOGIN_SUCCESS, "登录成功");
        return userInfo;
    }

    public void logout(String loginName)
    {
        recordLogService.recordLogininfor(loginName, Constants.LOGOUT, "退出成功");
    }

    /**
     * 注册
     */
    public void register(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            throw new ServiceException("用户/密码必须填写");
        }
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            throw new ServiceException("账户长度必须在2到20个字符之间");
        }
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            throw new ServiceException("密码长度必须在5到20个字符之间");
        }

        // 注册用户信息
        SysUser sysUser = new SysUser();
        sysUser.setUserName(username);
        sysUser.setNickName(username);
        sysUser.setPassword(SecurityUtils.encryptPassword(password));
        R<?> registerResult = remoteUserService.registerUserInfo(sysUser, SecurityConstants.INNER);

        if (R.FAIL == registerResult.getCode())
        {
            throw new ServiceException(registerResult.getMsg());
        }
        recordLogService.recordLogininfor(username, Constants.REGISTER, "注册成功");
    }

    /**
    * 给手机号发验证码登录
    * @return java.lang.String
    * @author xuda
    * @date 2023/4/23 20:50
    */
    public String GetPhoneCode(String phone) {
        //先看redis里面该手机号储存的验证码是否失效
        String code = redisTemplate.opsForValue().get("phonecode:"+phone);
        if (!org.springframework.util.StringUtils.isEmpty(code)){
            return phone+":"+"验证码尚未过期！";
        }
        // 生成6位验证码
        Long codeL = System.nanoTime();
        String codeStr = Long.toString(codeL);
        String verifyCode = codeStr.substring(codeStr.length() - 6);
        Config config = new Config()
                .setAccessKeyId(accessKeyId)
                .setAccessKeySecret(accessKeySecret);
        // 访问的域名
        config.endpoint = "dysmsapi.aliyuncs.com";
        // 创建短信客户端实例
        Client client = null;
        try {
            client = new Client(config);
        } catch (Exception e) {
            e.printStackTrace();
        }
        /**
         * 创建短信请求对象sendSmsRequest设置了相关参数
         * setSignName("维数公寓")     签名
         * setTemplateCode("SMS_276361433")  模板
         * setPhoneNumbers(phone)  手机号
         * setTemplateParam("{\"code\":\"" + verifyCode + "\"}");   短信 这里的名称必须是code
         * 因为在阿里云控制台申请的模板内容变量格式是   ${code}
         */
        SendSmsRequest sendSmsRequest = new SendSmsRequest()
                .setSignName("维数公寓")
                .setTemplateCode("SMS_276361433")
                .setPhoneNumbers(phone)
                .setTemplateParam("{\"code\":\"" + verifyCode + "\"}");
        RuntimeOptions runtime = new RuntimeOptions();
        try {
            // 打印 API 的返回值
            SendSmsResponse response = client.sendSmsWithOptions(sendSmsRequest, runtime);
            System.out.println(response.getBody());
            //存入redis，设置失效时间
            redisTemplate.opsForValue().set("phonecode:"+phone,verifyCode,5, TimeUnit.MINUTES);
            return phone+":"+"验证码"+verifyCode+"发送成功！";
        } catch (TeaException error) {
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        } catch (Exception _error) {
            TeaException error = new TeaException(_error.getMessage(), _error);
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        }
        return "发送失败";
    }

    /**
    * 手机号短信登录
    * @return com.ruoyi.system.api.model.LoginUser
    * @author xuda
    * @date 2023/4/23 20:49
    */
    public LoginUser loginByMobile(String phone, String verifyCode) {
        String rediscode = redisTemplate.opsForValue().get("phonecode:" + phone);
        // 判断验证码和缓存中的验证码是否相同
        if (!verifyCode.equals(rediscode)){
            throw new ServiceException("验证码有误");
        }
        // 查询用户信息
        R<SysUser> userResult = remoteUserService.getUserToPhone(phone, SecurityConstants.INNER);
        // 判断用户是否存在
        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData())){
            recordLogService.recordLogininfor(phone, Constants.LOGIN_FAIL, "登录用户不存在");
            throw new ServiceException("登录用户：" + phone + " 不存在");
        }

        // 拿到用户对象
        SysUser user = userResult.getData();

        // 判断用户状态
        if (UserStatus.DELETED.getCode().equals(user.getDelFlag())){
            recordLogService.recordLogininfor(phone, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
            throw new ServiceException("对不起，您的账号：" + phone + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.getStatus())){
            recordLogService.recordLogininfor(phone, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
            throw new ServiceException("对不起，您的账号：" + phone + " 已停用");
        }
        // 日志
        recordLogService.recordLogininfor(user.getUserName(), Constants.LOGIN_SUCCESS, "登录成功");

        LoginUser loginUser = new LoginUser();
        loginUser.setSysUser(user);

        return loginUser;
    }
}
